Reagents, M

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  • Manganese(II) chloride, 97%

    Alfa Aesar

    Formula: Cl2Mn Formula weight: 125.84 Purity: 97% CAS Number: 7773-01-5 UN Number: UN3288 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2827.39 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a …

  • Magnesium sulfate heptahydrate, ACS, 98.0-102.0%

    Alfa Aesar

    Synonym(s): Epsom salt Formula: MgSO4 7H2O Formula weight: 246.48 (120.37anhy) Purity: 98.0-102.0% CAS Number: 10034-99-8 Harmonized Tariff Code:  2833.21

  • 4-Methoxyphenyl isothiocyanate, 98%

    Alfa Aesar

    Synonym(s): p-Anisyl isothiocyanate Formula: C8H7NOS Formula weight: 165.22 Purity: 98% CAS Number: 2284-20-0 UN Number: UN2922 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2930.90 Hazard Statements: H331-H314-H318-H302-H312 Toxic if inhaled. Causes…

  • Magnesium sulfate heptahydrate, 99+%

    Alfa Aesar

    Synonym(s): Epsom salt Formula: MgSO4 7H2O Formula weight: 246.48 (120.37anhy) Purity: 99+% CAS Number: 10034-99-8 Harmonized Tariff Code:  2833.21

  • Manganese(II) chloride, ultra dry, 99.99% (metals basis)

    Alfa Aesar

    Formula: Cl2Mn Formula weight: 125.84 Purity: 99.99% (metals basis) CAS Number: 7773-01-5 UN Number: UN3288 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2827.39 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: …

  • Magnesium trisilicate

    Alfa Aesar

    Synonym(s): Magnesium silicate Formula: Mg2O8Si3 Formula weight: 260.86 CAS Number: 14987-04-3 Harmonized Tariff Code:  2839.90

  • Manganese(IV) oxide, Puratronic r, 99.997% (metals basis)

    Alfa Aesar

    Formula: MnO2 Formula weight: 86.94 Purity: 99.997% (metals basis) CAS Number: 1313-13-9 Harmonized Tariff Code:  2820.10 Hazard Statements: H302-H332 Harmful if swallowed. Harmful if inhaled. Precautionary Statements: P261-P264-P304+P340-P301+P312-P312-P501a Avoid breathing…

  • meso-1,2-Dibromo-1,2-diphenylethane, 97%

    Alfa Aesar

    Synonym(s): meso-Stilbene dibromide Formula: C14H12Br2 Formula weight: 340.07 Purity: 97% CAS Number: 13440-24-9 UN Number: UN1759 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2903.99 Hazard Statements: H314-H318 Causes severe skin burns and eye damage.…

  • Morpholine, 99%

    Alfa Aesar

    Formula: C4H9NO Formula weight: 87.12 Purity: 99% CAS Number: 110-91-8 UN Number: UN2054 Hazard Class: 8 Packing Group: I Harmonized Tariff Code:  2934.99 Hazard Statements: H314-H226-H302-H312-H332 Causes severe skin burns and eye damage. Flammable liquid and vapour.…

  • 3-Methyl-1-pentanol, 98%

    Alfa Aesar

    Formula: C6H14O Formula weight: 102.18 Purity: 98% CAS Number: 589-35-5 UN Number: UN1987 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2905.19 Hazard Statements: H301-H226-H315-H319-H335 Toxic if swallowed. Flammable liquid and vapour. Causes skin…

  • Manganese(II) sulfate tetrahydrate, 99% (metals basis)

    Alfa Aesar

    Formula: MnO4S 4H2O Formula weight: 223.06 (151.00anhy) Purity: 99% (metals basis) CAS Number: 10101-68-5 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2833.29 Hazard Statements: H373 May cause damage to organs through prolonged or repeated…

  • Mineral oil

    Alfa Aesar

    CAS Number: 8020-83-5 Harmonized Tariff Code:  2710.19

  • Methanesulfonic acid, 70% aq. soln.

    Alfa Aesar

    Formula: CH3SO3H Formula weight: 96.10 CAS Number: 75-75-2 UN Number: UN2586 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2904.10 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: …

  • Mercury, Oil based standard solution, Specpure r, Hg 1000µg/g

    Alfa Aesar

    Harmonized Tariff Code:  2852.10 Hazard Statements: H301-H311-H373-H332 Toxic if swallowed. Toxic in contact with skin. May cause damage to organs through prolonged or repeated exposure. Harmful if inhaled. Precautionary Statements: P260-P261-P301+P310-P361-P405-P501a Do not breathe…

  • 2-Methylbutyraldehyde, 95%

    Alfa Aesar

    Synonym(s): 2-Methylbutanal Formula: C5H10O Formula weight: 86.13 Purity: 95% CAS Number: 96-17-3 UN Number: UN1989 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2912.19 Hazard Statements: H225-H315-H319-H335 Highly flammable liquid and vapour. Causes skin…

  • Methyl Red, ACS

    Alfa Aesar

    Synonym(s): C.I. 13020 Formula: C15H15N3O2 Formula weight: 269.30 CAS Number: 493-52-7 Harmonized Tariff Code:  2927.00

  • 4-Methoxyphenylacetamide, 98%

    Alfa Aesar

    Formula: C9H11NO2 Formula weight: 165.19 Purity: 98% CAS Number: 6343-93-7 Harmonized Tariff Code:  2924.29

  • Malachite Green oxalate

    Alfa Aesar

    Synonym(s): C.I. 42000 Formula: C52H54N4O12 Formula weight: 927.02 CAS Number: 2437-29-8 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2921.59 Hazard Statements: H302-H312 Harmful if swallowed. Harmful in contact with skin. Precautionary…

  • Molecular sieves, 4A, 0.4-0.8mm (0.02-0.03in) beads

    Alfa Aesar

    CAS Number: 70955-01-0 Harmonized Tariff Code:  3824.90

  • Methyl Red

    Alfa Aesar

    Synonym(s): C.I. 13020 Formula: C15H15N3O2 Formula weight: 269.30 CAS Number: 493-52-7 Harmonized Tariff Code:  2927.00

  • 3-Methylquinoline, 98+%

    Alfa Aesar

    Formula: C10H9N Formula weight: 143.19 Purity: 98+% CAS Number: 612-58-8 Harmonized Tariff Code:  2933.49 Hazard Statements: H341-H315-H319 Suspected of causing genetic defects. Causes skin irritation. Causes serious eye irritation. Precautionary Statements: …

  • Magnesium hydroxide, 95-100.5%

    Alfa Aesar

    Formula: Mg(OH)2 Formula weight: 58.33 Purity: 95-100.5% CAS Number: 1309-42-8 Harmonized Tariff Code:  2816.10 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Molecular sieves, 13X, powder

    Alfa Aesar

    CAS Number: 63231-69-6 Harmonized Tariff Code:  3824.90

  • Molecular sieves, 5A, 3-5mm (0.12-0.20in) beads

    Alfa Aesar

    CAS Number: 69912-79-4 Harmonized Tariff Code:  3824.90

  • 4-Methyl-2-pentanone, ACS, 98.5+%

    Alfa Aesar

    Synonym(s): Methyl isobutyl ketone, Isopropyl acetone Formula: C6H12O Formula weight: 100.16 Purity: 98.5+% CAS Number: 108-10-1 UN Number: UN1245 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2914.13 Hazard Statements: H225-H332-H319-H335 Highly flammable…

  • 4-Methylpiperidine, 98+%

    Alfa Aesar

    Synonym(s): 4-Pipecoline Formula: C6H13N Formula weight: 99.18 Purity: 98+% CAS Number: 626-58-4 UN Number: UN2733 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2933.39 Hazard Statements: H225-H314-H318 Highly flammable liquid and vapour. Causes severe skin…

  • Magnesium oxide, 96% min

    Alfa Aesar

    Formula: MgO Formula weight: 40.30 Purity: 96% min CAS Number: 1309-48-4 Harmonized Tariff Code:  2519.90

  • Magnesium chloride hexahydrate, Cell Culture Reagent

    Alfa Aesar

    Formula: MgCl2 6H2O Formula weight: 203.30 (95.22anhy) CAS Number: 7791-18-6 Harmonized Tariff Code:  2827.31

  • 4'-Methoxyacetophenone, 99%

    Alfa Aesar

    Formula: C9H10O2 Formula weight: 150.18 Purity: 99% CAS Number: 100-06-1 Harmonized Tariff Code:  2914.50 Hazard Statements: H301-H315 Toxic if swallowed. Causes skin irritation. Precautionary Statements: P280h-P405 Wear protective gloves/clothing. Store locked up. Risk…

  • 2-Methoxy-4-nitrophenyl isothiocyanate, 97%

    Alfa Aesar

    Formula: C8H6N2O3S Formula weight: 210.21 Purity: 97% CAS Number: 190774-55-1 UN Number: UN2923 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2930.90 Hazard Statements: H331-H314-H318-H302-H312 Toxic if inhaled. Causes severe skin burns and eye damage. Causes…

  • Mercury, AAS standard solution, Specpure r, Hg 1000µg/ml

    Alfa Aesar

    Formula: Hg in 5 HNO3 UN Number: UN3264 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2852.10 Hazard Statements: H360-H314 May damage fertility or the unborn child. Causes severe skin burns and eye damage. Precautionary Statements: …

  • Melatonin, 99+%

    Alfa Aesar

    Synonym(s): Regulin, N-Acetyl-5-methoxytryptamine Formula: C13H16N2O2 Formula weight: 232.28 Purity: 99+% CAS Number: 73-31-4 Harmonized Tariff Code:  2937.90 Hazard Statements: H361 Suspected of damaging fertility or the unborn child. Precautionary Statements: …

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